Mac OS X 10.1 Puma (14) Home > Browsers > Firefox for Mac > Firefox for Mac for Mac OS X 10.7 (Lion) (Intel) Old Version of Firefox for Mac for Mac OS X 10.7 (Lion) (Intel)
Oct 24, 2019 How to update the software on your Mac - Apple Support Oct 18, 2019 Download Mac OS X 10.7.1 Lion - softpedia Aug 17, 2011 Mac Os 10 7 for Mac - Free downloads and reviews - CNET
Mac OS X El Capitan 10.11.1 DMG Mac Free Download [5.7 GB]
Honestly, I'm still on 10.6.8, myself (late 2009 21" iMac), and, if I were going to upgrade, I would skip 10.7 entirely and go for either 10.8 or 10.9. If your Mac is as old as mine, I would advise against 10.10, though. It may support it, but it doesn't like to run it. posted by Thorzdad at 2:10 PM on April 29, 2015
macOS - Wikipedia
Oct 24, 2019 · OS X El Capitan remains available for Mac computers that can't upgrade to macOS Catalina, Mojave, High Sierra, or Sierra, or that need to upgrade to El Capitan first. Nov 29, 2017 · If you succeed in downloading the OS installation, your next step is to create a bootable USB or DVD and then reinstall the OS on your computer. How to download older Mac OS X versions via the App Store. If you once had purchased an old version of Mac OS X from the App Store, open it and go to the Purchased tab.